Patent assignee · US · COMPANY

Quarkstar LLC

150Patents
147Active
150Granted
57Portfolio score

Filing activity: Aug 27, 2010 → Feb 2, 2024 · 18 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8314566B2 Solid state lamp using light emitting strips Electricity 94 Active
US8192051B2 Bidirectional LED light sheet Electricity 91 Active
US8573823B2 Solid-state luminaire Physics 84 Active
US8461602B2 Solid state light sheet using thin LEDs for general illumination Electricity 73 Active
US8410726B2 Solid state lamp using modular light emitting elements Emerging Cross-Sectional Technologies 71 Active
US8338199B2 Solid state light sheet for general illumination Electricity 66 Active
US8338841B2 Solid state light strips containing LED dies in series Electricity 65 Active
US8344397B2 Solid state light sheet having wide support substrate and narrow strips enclosing LED dies in series Electricity 65 Active
USD697663S1 Luminaire General 62 Active
US8506112B1 Illumination devices including multiple light emitting elements Mechanical Engineering; Lighting; Heating 61 Active
US8414154B2 Solid state bidirectional light sheet having vertical orientation Electricity 58 Active
US8210716B2 Solid state bidirectional light sheet for general illumination Electricity 56 Active
US8598778B2 Light emitting device having a specific dimension of phosphor layer Electricity 56 Active
US8602586B1 Illumination devices including multiple light emitting elements Mechanical Engineering; Lighting; Heating 47 Active
US8198109B2 Manufacturing methods for solid state light sheet or strip with LEDs connected in series for general illumination Electricity 46 Active
USD695442S1 Ceiling tile with luminaire General 40 Active
US8242518B2 Solid state light sheet for general illumination having metal interconnector through layer for connecting dies in series Electricity 39 Active
US8338839B2 Solid state light sheet for general illumination having substrates for creating series connection of dies Electricity 39 Active
US8833996B2 Illumination systems providing direct and indirect illumination Mechanical Engineering; Lighting; Heating 38 Active
US8338842B2 Solid state light sheet or strip having cavities formed in top substrate Electricity 34 Active
US9081125B2 Illumination devices including multiple light emitting elements Mechanical Engineering; Lighting; Heating 33 Active
US8338840B2 Solid state light sheet or strip having cavities formed in bottom substrate Electricity 33 Active
USD695447S1 Luminaire General 27 Active
US8899808B2 Lightguide luminaire module for direct and indirect illumination Mechanical Engineering; Lighting; Heating 24 Active
USD704372S1 Luminaire General 24 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.